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jotry
47
Oct 20, 2015
I'm not sure if anyone can answer my question, but figure I'll try since I'm not hearing back from Swan themselves. Do the Swan M200 MKIII speakers have a noticeable hiss when they are on?
I had an old pair of M200's, the original, that I don't remember this hiss with, but I recently got a pair of Swan T200c's and try as I want, I just can't overlook the hiss it produces sometimes. I was told from who I purchased it from that it's normal, but I just don't remember noticing a hiss with the M200's. I'd plug them back in if I had the time and energy, but I'd still want to know if these would produce the same problem I'm having with the T200c's.
Thanks all!
Prizeless
46
Oct 20, 2015
jotryI haven't noticed any hiss. They sound great.
foodisgood
2
Oct 27, 2015
PrizelessGot mine yesterday, I hear a slight hiss out of the left speaker.
Dizzy721
0
Oct 31, 2015
foodisgoodJust got mine in, no hissing using the included RCA to headphone cable.
Pharmaboy
60
Dec 7, 2017
jotryI bought my M200 MKIIIs direct from the manufacturer ~2 yrs ago. I used them for a little under 2 years (12 hrs/day, 7 days/wk in home office) until replacing them recently with Yamaha HS7s. My M200s had zero hiss or hum. Perhaps if I cranked them and put my ear right on the front of the speaker I'd hear a little something...but in practical terms, these are silent in use (except for music).
jotry
47
Dec 7, 2017
PharmaboyI forgot about this comment I posted. Curiosity eventually got me and I did pick up a set of the MKIIIs as well and can report the same as was commented by others. The MKIIIs compared to the T200Cs have no hiss. The MKIIIs do have a low level hum I would say, but it has to be dead silent in the house to hear this. It was hard to get away from the T200C hiss at times. It's a hard choice between the two. I loved my original M200s and these are a great step up, but I probably would prefer the T200C sound a bit better, but at the same time I'd take the MKIII low level hum over the T200C low level hiss. Give and take. :)
Pharmaboy
60
Dec 7, 2017
jotryInteresting reply. In my experience, hum can be very system- and component-dependent. For example, some all-tube preamps/amps are well known for humming (see fix below).
Whenever I've encountered hum in the audio chain, my goal becomes to exclude my own chain of components & power devices as culprits. There are mulitiple ways to do it:
1 - First & most obvious is to "float" the ground to the power cord of the device that hums. In other words, if the cord you're using to power the Swans has a ground plug, put on an ungrounded extender (w/3 female slots on one side & 2 prongs--no ground--on the other).
2 - If this has no effect, or if the Swans have an ungrounded power cord (honestly can't remember), then do the same thing to the next device upstream in your system (DAC?).
3 - If none of that works, this sometimes works: plug the Swans + the device that feeds them signal into a switchable power strip (grounded), and see if proximity plugging in that manner will help. If not, use the ungrounded extender between the power-strip's power cord & the wall plug.
This is not exactly a defined science. It's just hierchical troubleshooting & attempts to vary the grounding scheme for the Swans &/or associated devices.
PS: When I had the Swans, they were plugged into a power-strip w/3-4 other devices (per item #3 above)...not because of hum, but for convenience: I used the power-strip's on-off button as a master on-off. I also made sure to turn off the preamp that directly fed signal to the Swans at night after switching off the power-strip; then in the AM when I switched on the power strip, I turned on the preamp afterward using its own on/off switch (prevents a transient/"thump" heard through the monitors).
jotry
47
Dec 7, 2017
PharmaboyThank you for that info! I'll use it when I'm feeling up to tinkering around with it. Right now I feel like I'm in hibernation for the most part with cold weather coming on.
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